diff options
| -rw-r--r-- | utils/osmo-arfcn.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/utils/osmo-arfcn.c b/utils/osmo-arfcn.c index b88db5af..2be3958e 100644 --- a/utils/osmo-arfcn.c +++ b/utils/osmo-arfcn.c @@ -58,6 +58,27 @@ static int arfcn2freq(int arfcn) return 0; } +static int freq2arfcn(int freq10, int uplink) +{ + uint16_t arfcn; + + if (uplink != 0 && uplink != 1) { + fprintf(stderr, "Need to specify uplink or downlink\n"); + return -EINVAL; + } + + arfcn = gsm_freq102arfcn(freq10, uplink); + + if (arfcn == 0xffff) { + fprintf(stderr, "Unable to find matching ARFCN\n"); + return -EINVAL; + } + + printf("%s: ARFCN %4d\n", + gsm_band_name(gsm_arfcn2band(arfcn)), + arfcn & ~ARFCN_FLAG_MASK); +} + static void help(const char *progname) { printf("Usage: %s [-h] [-p] [-a arfcn] [-f freq] [-u|-d]\n", @@ -66,7 +87,7 @@ static void help(const char *progname) int main(int argc, char **argv) { - int arfcn, pcs = 0; + int arfcn, freq, pcs = 0, uplink = -1; int opt; char *param; enum program_mode mode = MODE_NONE; @@ -84,6 +105,12 @@ int main(int argc, char **argv) mode = MODE_F2A; param = optarg; break; + case 'u': + uplink = 1; + break; + case 'd': + uplink = 0; + break; case 'h': help(argv[0]); exit(0); @@ -104,6 +131,10 @@ int main(int argc, char **argv) arfcn |= ARFCN_PCS; arfcn2freq(arfcn); break; + case MODE_F2A: + freq = (int)(atof(param) * 10.0f); + freq2arfcn(freq, uplink); + break; } exit(0); |